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KEITH CO.: Benchtop Hardening Furnace

Keith’s benchtop furnaces can be classified as one of three basic types: heat treating furnaces (also known as hardening furnaces), draw furnaces (also known as annealing, tempering or forced convection furnaces) and assaying furnaces (used for gold determination as well as jewelry making). Keith’s dual-chamber furnaces are designed for those who want a hardening furnace and a separate furnace for tempering, all within minimum floor space.

Keith benchtop hardening furnaces are designed for use in the shop, laboratory or factory for a variety of heating processes, including testing. The most common use is for the hardening of tool steel. When a steel part is hardened, it is heated to a specified high temperature and held there for a required period of time. Heat transfer to the tool steel is accomplished by direct radiation, which delivers uniform temperatures. Standard maximum temperature is 1,232°C (2,250°F). Keith offers optional 1,316°C (2,400°F) maximum temperature versions of these furnaces upon request.